title: Combined hepatitis A and B vaccines.
mesh_terms: D000328:Adult; D002648:Child; D002986:Clinical Trials as Topic; D006506:Hepatitis A / Q000517:prevention & control*; D022362:Hepatitis A Vaccines; D006509:Hepatitis B / Q000517:prevention & control*; D017325:Hepatitis B Vaccines; D006801:Humans; D012307:Risk Factors; D017778:Vaccines, Combined; D014761:Viral Hepatitis Vaccines
chemical_list: D022362:Hepatitis A Vaccines; D017325:Hepatitis B Vaccines; D017778:Vaccines, Combined; D014761:Viral Hepatitis Vaccines